-
÷
+
=________(
-
×
)÷
=________
×
+
+
=________
÷〔(
-
)×
〕=________6×(
+
)-
=________2-
÷
-
=________
-(
÷
+
)=________〔2-(
+
)〕÷
=________1-(
÷
+
)=________
÷
+
÷
-
=________(1-
÷
)×
=________(
-
×
)÷
=________〔
-(
-
)〕÷
=________
×〔1÷(
+
)〕=________(
×
+
)÷
=________
÷5+
÷
+0.2=________
÷〔(
-
)÷
〕=________〔4-(
-
)〕÷
=________
÷〔
×(
+
)〕=________3-
×
-
=________
÷〔(
-
)×
〕=________.



1









29


分析:根据题意,根据分数四则混合运算的计算即可.
解答:
-
÷
+
=
-
+
=
-
+
=

=
;(
-
×
)÷
=(
)×
=
-
=5-

=
;
×
+
+
=
+
+
=
+
+
=1+

=
;
÷[(
-
)×
]=
÷[(
-
)×
]=
÷[
×
]=
÷
=

=

=
;6×(
+
)-
=
+
-
=
+

=

=

=
;2-
÷
-
=2-


=2-


=2-(
)=2-1
=1;
-(
÷
+
)=
-(
+
)=
-(
)=

=1-

=
;[2-(
+
)]÷
=[2-(
)]÷
=[
-
]÷
=

=

=
;1-(
÷
+
)=1-(
×
+
)=1-(
)=1-

=1-

=
;
÷
+
÷
-
=
×
+
×
-
=
×(
+
-1)=
×1=
;(1-
÷
)×
=(1-
×
)×
=(1-
)×
=
×
=
;(
-
×
)÷
=
×(1-
)×
=
×
×
=
;[
-(
-
)]÷
=[
-(
-
)]÷
=[
-
+
]÷
=
×
=

=
;
×[1÷(
+
)]=
×[1÷(
+
)]=
×[1÷
]=
×1×
=
;(
×
+
)÷
=(
×
+
)÷
=(
)×
=2×

=

=
;
÷5+
÷
+0.2=
×
+
×
+
=
(
)=

=
;
÷[(
-
)÷
]=
÷[(
)×
]=
÷
=

=

=
;[4-(
-
)]÷
=[4-(
-
)]÷
=[4-
]÷
=[4-
]×8=4×8-

=32-3
=29;
÷[
×(
+
)]=
÷[
×(
+
)]=
÷[
×
]=
÷
=

=

=
;3-
×
-
=3-
-
=3-(
+
)=3-1
=2;
÷[(
-
)×
]=
÷[(
-
)×
]=
÷[
×
]=
÷
=
×14=1
.点评:根据分数的四则混合运算法则计算,能简便计算的要简便计算.